Test tube rack



Dec. 15, 1931. w. D. TURNER ET AL TEST TUBE RACK Filed July 25, 1929 Z2Z2 Turner dkowcq Patented Dec. 15, 1931 [UNITED STATES PATENT; oF

FICE] WILLIAM D. TURNER OF J'OPLIN, MISSOURI, AND EVANS W. BUSKETT, 01NEW YORK,

new rom max Application filed July 23,

The invention relates to racks and particularly to test tube racksespecially designed for holding test tubes. The racks are so constructedthat the test tubes can readily be 6 held in a position to drain beforethey are placed in the rack proper.

Another object of this invention 1s to provide a test tube draining rackin which the tubes may be drained without straining the 1nterior of thetube by pegs or the lip of the tube by surface contact with stainpromotmg materials of construction.

Another object of this invention is to provide a test tube holding anddraining rack which may be shipped to the user in a flat package andwhich may be set up withoutthe use of adhesive or other securlng means.

With the foregoing and other objects in view, the invention consists ofthe novel construction hereinafter more specifically statedandillustrated in the accompanying drawlngs, but it is to be understoodthat changes, variations and modifications-may be resorted to withoutdeparting from the scope of the appended claims.

In describing the invention in detail, reference is had to theaccompanying drawings which forms apart of this invention and whereinlike characters of reference indicate corresponding parts throughout theseveral views in which Figure 1 is a front elevation of our test tuberack showing test tubes in the draining and the upright position.

Figure 2 is an end view of the same.

Figure 3 is a sectional View of the shown in Figure 1.

Figure 4 is a view of the device before the parts thereof are foldedinto their operative position.-

The test tube rack is made of a single sheet of cardboard or othermaterial and includes an upright member 10 having an integral formed topmember 11, bottom member 12 and end members 13 and 14, connected therewith, preferably by scored or creased edges 15, 16, 17 and 18respectively.

The end members 13 and 14 are provided with elongated slots 19 and 20into which fit rack 1929. Serial No. asaaoa tongue members 21 and 22 onthe top and bottom members 11 and 12.

The top member 11 is provided with a plurality of openings 24 to receivethe test tubes, the top member being bent downward at 23 so that thefront row of openings are as shown in Figures 1 and 3. The bottom memberis provided with a plurality of o nings 25 which are adapted to recelvethe h bttoms of the test tubes and hold them in the upright position.The bottom member 12 is also provided with a plurality of triangularopenings 26 which cooperate with the front row of openings in the topmember to form a drain ing rack for the tubes which has no pegs toprevent the tubes from properly drainin as in the present type of testtube racks. The bottom member has the edge 27 bent along the lineadjacent to the base line of the triangular openings 26 to form thedrain panel 28. In Figures 1 and 3 is shown test tubes 29 in the uprightposition and in the draining position. p

Thus with a construction so simple as not to increase the cost norpresent any part that might become lost, an eflicient rack for testtubes is provided.

Having thus described our invention what we desire to claim and protectby Letters Pat ent is 1. A test tube rack comprising a back member; endmembers hingedly connected thereto, said end members having greaterwidth at the bottom than the top; top and bottom members provided withmeans for holding test tubes in an upright and in an inclined position;means for securing the top and bottom members to the end members.

2. A test tube rack comprising a back member; end members having agreater width at the bottom than at the top; top and bottom members ofgreater width than the end walls; said top and bottom members having thefront edges bent downwardly to form a draining means for test tubes,said top and bottom members provided with means for holding test tubesin the upright position.

3. A folding test tube rack comprising an upright member having endwalls hinged to opposite ends thereof; top and bottom members hinged toop osite sides of said u right member; means or securing the wal s andmembers in the operative osltion and means for holding test tubes in t eupright position and said top and bottom members provided with a seriesof o enings along the front ed es thereof 'for hol ing the test tubes inan 1nclined position.

4. A test tube rack comprising substantial- 1y vertical end walls, topand bottom horizontal members provided with a series of spaced openingsfor holding the test tubes in an upright position, said bottomhorizontal member being of greater width than said top horizontalmember, and the front edges of the top and bottom members provided withopenings for holding test tubes in spaced and inclined position fordraining.

5. In a test tube rack comprising spaced apart top and bottom horizontalmembers, means in said top and bottom members for holding test tubes inthe upri ht position, said bottom horizontal member fieing of greaterwidth than said top horizontal member, means for su porting thehorizontal members in spaced re ationship, and the front edges of saidtop and bottom horizontal members provided with openings for holdingtest tubes In inclined position.

EVANS W. BUSKETT. 1 WILLIAM D. TURNER.

